Gebruiksaanwijzing /service van het product TNETX3270 van de fabrikant Texas Instruments
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TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 752.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 description The TNETX3270 provides highly integrated switching solutions that allow network designers to lower overall system costs.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SDRAM Interface 36 . . . . . . . . . . . . . . .
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 V DD(2.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 POST OFFICE BOX 655303 DALLAS, TEXAS 75265 • .
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 752.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 752.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 T erminal Functions (Continued) 10-/100-Mbit/s MAC interface (ports 24–26) (continued) † TERMINAL I/O INTERNAL DESCRIPTION NAME NO.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 9 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 T erminal Functions (Continued) SDRAM interface TERMINAL I/O INTERNAL DESCRIPTION NAME NO.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 T erminal Functions (Continued) host DIO interface TERMINAL I/O INTERNAL DESCRIPTION NAME NO.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 11 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 T erminal Functions (Continued) serial MII management PHY interface TERMINAL I/O INTERNAL DESCRIPTION NAME NO.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 12 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 T erminal Functions (Continued) miscellaneous TERMINAL I/O INTERNAL DESCRIPTION NAME NO.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 13 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 DIO register groups T able 1.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 14 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 T able 2.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 15 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 T able 2.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 16 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 T able 2.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 17 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 T able 2.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 18 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 19 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 network management port Frames can be received or transmitted via the DIO interface using a built-in port, the network management (NM) port.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 20 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 frame format on the NM port The frame format on the NM port differs slightly from a standard Ethernet frame format.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 21 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 22 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 23 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 receive filtering of frames Received frames that contain an error (e.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 24 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 25 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 T able 5.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 26 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 27 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 28 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 29 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 JT AG interface The TNETX3270 is fully IEEE Std 1 149.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 30 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 T able 10. LED Status Bit Definitions and Shift Order ORDER NAME FUNCTION slast = 0 slast = 1 NAME FUNCTION 1–7 1–7 0 Zero.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 31 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 T able 1 1.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 32 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 33 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 34 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 35 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 36 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 37 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SDRAM interface (continued) T able 15.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 38 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 39 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 frame routing VLAN support The internal routing engine supports the IEEE Std 802.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 40 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 IEEE Std 802.1Q headers – reception When the internal address-lookup engine (IALE) examines the received frame, it contains an IEEE Std 802.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 41 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 42 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Unknown Multicast Destination Start Known VLAN? Source Port = 1 in.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 43 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 44 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 45 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 46 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 47 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 pause frame reception The IEEE Std 802.3X standard defines a MAC control frame as any frame containing a length/type value = 88.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 48 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 49 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TNETX3270 08 07 06 05 04 03 02 01 00 NM 09 26 Figure 10.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 50 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 51 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 absolute maximum ratings over operating junction temperature range (unless otherwise noted) † Supply voltage range: V DD(2.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 52 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 P ARAMETER MEASUREMENT INFORMA TION Outputs are driven to a minimum high-logic level of 3.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 53 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 10-Mbit/s interface (ports 00–23) timing requirements (see Notes 3 through 6 and Figure 13) NO.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 54 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 55 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 10-/100-Mbit/s transmit ports (24, 25, and 26) timing requirements (see Figure 15) NO.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 56 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 57 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SDRAM subcycle operating characteristics over recommended operating conditions (see Figure 17) NO.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 58 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 DIO/DMA interface The DIO interface is asynchronous to allow easy adaptation to a range of microprocessor devices and computer system interfaces.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 59 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 DIO/DMA read cycle timing requirements (see Figure 19) NO.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 60 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 serial MII management interface timing requirements (see Figure 20) NO.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 61 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 EEPROM interface operating characteristics over recommended operating conditions (see Figure 21) NO P ARAMETER TNETX3150 TNETX3150A UNIT NO .
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 62 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 LED interface operating characteristics over recommended operating conditions (see Figure 22) NO.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 63 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 power-up OSCIN and RESET timing requirements (see Figure 23) NO.
TNETX3270 ThunderSWITCH 24/3 ETHERNET SWITCH WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999 64 POST OFFICE BOX 655303 • DALLAS, TEXAS 75.
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